9772989 has 4 divisors (see below), whose sum is σ = 13030656. Its totient is φ = 6515324.

The previous prime is 9772981. The next prime is 9773003. The reversal of 9772989 is 9892779.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9772989 - 2³ = 9772981 is a prime.

It is a super-2 number, since 2×9772989² = 191022627988242, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9772981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628829 + ... + 1628834.

It is an arithmetic number, because the mean of its divisors is an integer number (3257664).

Almost surely, 2^9772989 is an apocalyptic number.

It is an amenable number.

9772989 is a deficient number, since it is larger than the sum of its proper divisors (3257667).

9772989 is a wasteful number, since it uses less digits than its factorization.

9772989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3257666.

The product of its digits is 571536, while the sum is 51.

The square root of 9772989 is about 3126.1780179638. The cubic root of 9772989 is about 213.8007068238.

The spelling of 9772989 in words is "nine million, seven hundred seventy-two thousand, nine hundred eighty-nine".